he admitted as much at a fund-raiser last night in san francisco. >> after the debate, i had a bunch of folks come to me. don't be so polite. don't be so nice. ( cheers and applause ) but i want everybody to understand something. what was being presented wasn't leadership. that's salesmanship. governor romney's plan is to let wall street run wild again but he's going to bring the hammer down on sesame street. >> ifill: the obama campaign thought to exploit the sesame street reference today with a new television ad >> mitt romney knows it's not wall street you have to worry about. it's sesame street. >> i'm going to stop the subsidy to pbs >> mitt romney taking on our enemies no matter where they nest >> ifill: sesame street workshop asked the obama campaign to pull the ad down. as paul ryan and joe biden prepare to meet in their debate later this week, the presidential candidates will continue to narrow their focus with a romney swing through ohio and a presidential visit to florida. >> woodruff: tonight's edition of front line on pbs searches past the campaign trail for a fuller und